Trading record's  example

Bob ;- send 1bitcoin to cryptsy wallet .( cryptsy wallet record got 1btc form Bob accounts)

He trade make profit .now bob have 2btc balance ( trading record )
Bob :- did not withdrew that coins
      2hours after
Cryptsy shutdown for same reason  or hack / user's trading data lost .
Cryptsy restart back . normal again


Bob claim he have  2btc  balance but he got  1 bitcoin balance

But cryptsy  owner said this information base on your deposits ( bob don't have proofs to show . he have 2 Btc , law not even help him in this case )

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Now here bittrex Vernon accounts have samething

Bittrex have deposits n withdrew record
But they don't have trading history of his account

I hope . now you understand @ gleb